Filter.



110.846,582. PAENTED MAR.12,1907. 4

H. LIEBERIGH.

FILTER. APPLIOATION FLED JUNE z, 1905.

i di? nate o German ro of variouskinds; and it has for its o UNITED STATES PATENT oFFIcE.

HEINRICH; LIEBEEICH, oF NEUSTADT-oN-THE- HARDT, GERMANY, AssIGNoR To THE FIRM or L. LIEBERIcH SOHNE, eM. B. H.,

oF NEUSTADT-oN-THE-HARDT, GERMANY.

FILTER.

Specification of Letters Patent.

Patented March 12, 1907.

Application filed June 2, 1905. Serial No.4 263.413.

To ,all whom it may concern: i

,Be it known that I, HEINRICH LIEBERICH, residin at Neustadt-on-the-Hardt, Palatithe Rhine, Kingdom of Bavaria, have inventednew and useful Imrovements in Filters, of which the following 1s a specification.

Thlsinvention relates to an improved con-.

struction of lter suitable for filterin liquids iject to provide means whereby a filtrate may be obtainedwhich is perfectly clear to the last drop.- In the im roved filter the several elements are slipped, y means of rings provided at the I5 corners of their frames, onto the deliverypipes, which are closed at their inner ends and which extend through the filter, intermediate strips of rubber -being inserted which4 are also provided with rings at both ends.`

zo The e'lementslare fixed, by means of long caps which abut against the rings of thelast strlp of rubber and the end of each of which is traversed by a lscrew-spindle, (in the samev manner as the closed ends of the deliveryvz5 pipes,) so that said elements are jointed agalnst one another and against the bottom or end of the casing by screwing up said screw-spindles. The-liquid enters the filter elements under pressue and passes thence 3oI to the outside through horizontal slots which are provided in 'the Interior of the frame and which are in communication with longitudinal slots .in the delivery-pipes. This arrangement has the advantage that a greater 3 5 or less number of filter elements, according to requirements, can be mounted upon and jointed to the delivery-pipes rwhich. are al- 4ways kept vclosed by means of the long caps.

The invention is illustrated in the accom- 4o panying drawing, in which-'V made capable of Iieino axially rotated,) pro- -vided with a removable cover b and in which the several lter elements are built one upon the other in the usual manner.

c d are two parallel delivery-pipes for de- 5o livering the filtered liquid. They are connected to 'each other outside of the elements 'by means of a connecting-pipe e, fitted with a draw-off cock f.

I Each element comprises a frame g, of metal or other suitable material, upon the upper and lower sides of which is placed a finemeshed woven-wire fabric h. Said frame g is provided with rings at those of its anglesl which correspond in position to the deliverypipes c d for the purpose of enabling the said frame to be slipped onto the delivery-pipes -c d. In order to prevent'the sheets of wire fabric h frombein forced into contact with one another by I them from the outside, a thin frame 'L is preferably inserted between them.

The elements constructed as above described are inserted intheusual manner in bags y' and are separated one from-the other by the interposition of rubber strips k between thm. Each of these rubber strips 7c is formed at its vtwo ends with rin s by means of which it can be slipped onto t e deliverypipes c d. The elements are held apart at' their other sides by means o f distance-pieces Z, whereb equal intervals are maintained between t em.

When the elements have been placed one upon the other then, according to the present invention, long ca s mare placed'upon the two rings of the ast` rubber strip, the diameter of each cap m beine4 somewhat greater than the diameter of t e deliverypipes c d. Screw-spindles nA are then passed through the'covers ofthe caps m and through the closed ends of the delivery-pipes c d, so that by screwing up the spindle rnl the ca s m are pressed tightly against the rin s o the last rubber strip, and the jointingo the elements one with the other and with the end of the' filter-casing is completed. v The rinOs of the'frames g of the elements are e pressure acting upon formed with horizontal perforations o, which coincide with the lon itudinal slots p of the delivery-pipes when t e elements are put together on the delivery-pipes, so that the interior of the delivery-pipes c d are in communication with the interior of each element, irrespective of whether there are many or few elements combined together in alter.

The caps m are made of considerable length so as, even when only a few elements are employed, 'to allow of efficient iointing being effected. In order that when man elements are employed room ma be afi'or ed for the caps while avoiding as ar as posslthrough a pi b le dead s ace in the filter, pockets or entens1 ons Q c osed 'at their'onterends, are provided 1n the filter-casing opposite to said caps. v z t The operation of theI improved filter is .as

I follows:y The ilter elements having', beenas'- through the lter-clothand the woven-Wire.

rthe delivery-pipes fabric into the interiorofthe elementsfandl thence through the a ertures in ,the'imes of the elements and t e longitudinal slotsin intothey interior of thelat-4 ter. By the provision of the4 horizontal apertures in the Jframe of the elements and the longitudinal slots in the delyeryfpipes theair is completely removed from the elements,

and consequentlyra perfectlylsteady ilteringl effect is roduced, While the from all c oudiness. l

If air should be present Vinthe iiltercasing, it can be removed by means of a vent furnished'with an observation-glass s. Fi-l nally, b y means of the small cock t at the. lowest point of the delivery-pipes the last filtrate free remnant of theiiltered liquid can be withdrawn fromthe lterz;v Lf 'if As the ltr lis e' 'uallyadapte'd'for'u's'e with a small or a greaternumber of elements it can be emplo edfi'nfilterin liquidsofuthe most varied v:c 'aractes-sc as vvwine, beer, water', or the'like, "-ii- Y lil, f Y' l l What claim as new and of my invention,

l and desire to secure by Letters Patent, is

1. A lter comprising an apertured discharge-pipm-af series of filtering-elements mounted ,on Asaid pipe, a cap surrounding one end of the discharge-pipe to cover the ing said cap .lengthwise of the pipeftoclamp' the iilteringelemen'ts.

' 2. A ltei comprising @Il apertureddisS-'f chargepipe, a serie's`A y filtering' elements mounted on said p1pe,'ac`ap surrounding onef end of the discharge-pipe to' cover the aper# tures of said end, means for adjusting' said i cap lengthwise ofthe pipe .toelamp thefiltering' elements,"l and afcasiri" formed *v'ithl a pocket lto accommodate sai cap.v

Intestinon that II claim the my invention I have signed my name',-1n presence of two witnesses, 'thisj`17th-'day"of Witnesses:

' `MICHAEL Znmmr'nsmim,` f FRrEDRroH SOHAEDLER. 1

45 apertures of said end, andmeans for adjustm j HCH; LIE'BERICH; 

